<template>
  <ul class="song-list">
    <li
      class="item"
      v-for="(song, index) in songs"
      :key="song.id"
      @click="selectItem(song, index)"
    >
      <div class="rank" v-if="rank">
        <span :class="getRankCls(index)">{{ getRankText(index) }}</span>
      </div>
      <div class="content">
        <h2 class="name">{{ song.name }}</h2>
        <p class="desc">{{ getDesc(song) }}</p>
      </div>
    </li>
  </ul>
</template>

<script>
  export default {
    name: 'song-list',
    props: {
      songs: {
        type: Array,
        default() {
          return []
        }
      },
      rank: Boolean
    },
    emits: ['select'],
    methods: {
      getDesc(song) {
        return `${song.singer}·${song.album}`
      },
      selectItem(song, index) {
        this.$emit('select', { song, index })
      },
      getRankCls(index) {
        if (index <= 2) {
          return `icon icon${index}`
        } else {
          return 'text'
        }
      },
      getRankText(index) {
        return index + 1
      }
    }
  }
</script>

<style lang="scss" scoped>
  .song-list {
    .item {
      display: flex;
      align-items: center;
      box-sizing: border-box;
      height: 64px;
      font-size: $font-size-medium;
      .rank {
        flex: 0 0 25px;
        width: 25px;
        margin-right: 20px;
        text-align: center;
        .icon {
          display: inline-block;
          width: 25px;
          height: 24px;
          background-size: 25px 24px;
          &.icon0 {
            @include bg-image('first');
          }
          &.icon1 {
            @include bg-image('second');
          }
          &.icon2 {
            @include bg-image('third');
          }
        }
        .text {
          color: $color-theme;
          font-size: $font-size-large;
        }
      }
      .content {
        flex: 1;
        line-height: 20px;
        overflow: hidden;
        .name {
          @include no-wrap();
          color: $color-text
        }
        .desc {
          @include no-wrap();
          margin-top: 4px;
          color: $color-text-d;
        }
      }
    }
  }
</style>
